For a movie that’s more than 55 years old, it’s astounding just how prevalent and instantly recognizable Psycho is—particularly the iconic music. If you’ve never seen it, Psycho is a horror film about a woman who ends up in a motel with its disturbed owner, Norman Bates.

The theme song is downright menacing. So how do you make this dread-invoking score even more frightening? Make knives an instrument.

Horsley has arranged and performed for movies and TV, and it’s cool videos like these that probably keep work coming in.

This isn’t the first time knives have been used to make music. In fact, a while back someone created the Electric Knife Orchestra—a sendup of Electric Light Orchestra (look them up youngin’). He used 19 knives and some electronic equipment to play “Stayin’ Alive” by the Bee Gees.

Here’s that:

There are countless things you can do with knives. We even made a list of 101 uses for the pocket knife. We may have to amend it and add “make music” to the list.